<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">

      <div class="title-container">
        <div class="login-logo"><img src="@/assets/login_images/login_logo.png" alt="加载失败"></div>
        <h3 class="title">伟本信息化管理系统</h3>
      </div>

      <div class="login-error-text" v-show="errorShow">
        <i class="el-icon-warning-outline"></i>
        <span>登录名或者登录密码不正确</span>
      </div>

      <el-form-item prop="username" class="user-name-box">
        <!-- <span class="svg-container">
          <svg-icon icon-class="user" />
        </span> -->
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="账号"
          name="username"
          type="text"
          tabindex="1"
          autocomplete="on"
        />
      </el-form-item>

      <el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
        <el-form-item prop="password">
          <!-- <span class="svg-container">
            <svg-icon icon-class="password" />
          </span> -->
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="密码"
            name="password"
            tabindex="2"
            autocomplete="on"
            @keyup.native="checkCapslock"
            @blur="capsTooltip = false"
            @keyup.enter.native="handleLogin"
          />
          <!-- <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span> -->
        </el-form-item>
      </el-tooltip>

      <div class="rember-password">
        <div class="rember-box" @click="remberPass">
          <span v-if="remberPassword">✔</span>
        </div>
        <span>记住用户名&密码</span>
      </div>

      <div @click.native.prevent="handleLogin">
        <span class="login-btn">登录</span>
        <!-- <el-button class="login-btn" :loading="loading">登录</el-button> -->
      </div>

      <div style="position:relative">
        <!-- <div class="tips">
          <span>Username : admin</span>
          <span>Password : any</span>
        </div> -->
        <div class="tips">
          <span>提示: 为了获得更好的体验，建议使用谷歌,IE10+或 火览器进行访问建议采用分辨率1920*1080以 达到最佳显示效果</span>
          <!-- <span style="margin-right:18px;">Username : editor</span>
          <span>Password : any</span> -->
        </div>

        <!-- <el-button class="thirdparty-button" type="primary" @click="showDialog=true">
          Or connect with
        </el-button> -->
      </div>
    </el-form>

    <el-dialog title="Or connect with" :visible.sync="showDialog">
      Can not be simulated on local, so please combine you own business simulation! ! !
      <br>
      <br>
      <br>
      <social-sign />
    </el-dialog>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import SocialSign from './components/SocialSignin'

export default {
  name: 'Login',
  components: { SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      if(!value.length) {
        callback(new Error('请输入用户名'))
        this.errorShow = false
      } else if (!validUsername(value)) {
        this.errorShow = true
      } else {
        this.errorShow = false
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        // callback(new Error('The password can not be less than 6 digits'))
        callback(new Error('密码不能少于六位'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin',
        password: '111111'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
      remberPassword: true,
      errorShow: false
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && (key >= 'A' && key <= 'Z')
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    },
    remberPass() {
      this.remberPassword = !this.remberPassword
    }
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;
$black-size:#000000;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $black-size;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 44px;
    width: 100%;

    input {
      background: $cursor;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      // padding: 12px 5px 12px 15px;
      color: $black-size;
      height: 44px;
      caret-color: $black-size;

      // &:-webkit-autofill {
      //   box-shadow: 0 0 0px 1000px $bg inset !important;
      //   -webkit-text-fill-color: $cursor !important;
      // }
    }
  }
  .el-form-item.user-name-box {
    margin-bottom: 31px;
  }
  .el-form-item {
    // background: rgba(0, 0, 0, 0.1);
    // margin-top: 31px;
    margin-bottom: 0px;
    .el-form-item__content {
      border:1px solid rgba(204, 204, 204, 0.49);
      border-radius: 5px;
      color: #454545;
    }
  }
  .login-btn {
    display: block;
    width: 100%;
    // line-height: 50px;
    line-height: 40px;
    text-align: center;
    background:linear-gradient(180deg,rgba(255,122,0,1),rgba(254,158,71,1));
    box-shadow:0px 10px 16px 0px rgba(107,131,173,0.51);
    border-radius:2px;
    font-size:16px;
    color:rgba(255,255,255,1);
    margin-bottom: 21px;
    cursor: pointer;
  }
}
</style>

<style lang="scss" scoped>
$bg:#fff;
$dark_gray:#889aa4;
$light_gray:#eee;
$black-size:#000000;

.login-container {
  color: $black-size;
  min-height: 100%;
  width: 100%;
  background: url("~@/assets/login_images/login_bg.png") no-repeat;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 370px;
    max-width: 100%;
    // padding: 160px 35px 0;
    padding-top: 169px;
    // padding-top: 100px;
    margin: 0 auto;
    overflow: hidden;
  }

  .rember-password {
    display: flex;
    align-items: center;
    margin: 20px 0 59px 0px;
    span {
      display: block;
      font-size:21px;
      line-height: 21px;
    }
    .rember-box {
      width:21px;
      height:21px;
      border: 1px solid #cccccc;
      text-align: center;
      cursor: pointer;
      margin-right: 3px;
    }
  }

  .tips {
    font-size: 14px;
    color: #333333;
    margin-bottom: 10px;
    text-align: center;
    span {
      &:first-of-type {
        margin-right: 21px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    .login-logo {
      width:262px;
      height:86px;
      margin: 0 auto 57px auto;
      img {
        width:100%;
        height:100%;
      }
    }

    .title {
      font-size: 26px;
      color: $black-size;
      margin: 0px auto 31px auto;
      text-align: center;
      // font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }
  .login-error-text {
    background:rgba(255,231,236,1);
    border:1px solid rgba(255, 9, 58, 1);
    border-radius:4px;
    line-height: 36px;
    width: 100%;
    color: #FF093A;
    i {
      margin-left: 18px;
      margin-right: 21px;
    }
    margin-bottom: 10px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
